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Difficulty: EasyDriving in Adverse Weather and Low Visibility

When driving through dense fog, you should turn on your high-beam headlights to maximize your visibility of the road ahead.

Answer: Answer

Answer

False. Drivers must use low-beam headlights or fog lights in dense fog to avoid reflection and glare.
The statement is false because high-beam headlights shine light straight into fog, reflecting off water droplets back toward the vehicle and causing glare that severely obscures vision. Low-beam headlights or fog lights should always be used.

Step-by-Step Solution

1
Analyze how light interacts with fog particles.
Fog consists of small water droplets suspended in the air that scatter light.
Understanding the physical environment helps determine effective light usage.
2
Evaluate the effect of high-beam versus low-beam headlights.
High beams reflect light directly back into the driver's eyes, while low beams direct light down toward the road surface beneath the fog line.
Direct light reflection creates glare, reducing overall distance visibility.

Key Concept

Headlight Selection in Fog and Low Visibility
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Topics

Driving in Adverse Weather and Low Visibility

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